Concentrating-jig.



No. 674,2l4.

Patented May I4, |90I. S. ORB.

CONGENTRATING JIG.

. (Application led. Tune 27, 1900.) (No Model.) 2 Sheets-Sheet ATTOHIVEYS No. 674,214. Patented may |4, |901.

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. CONCENTRATING JIG.

` (Application led June 27, 19001i v (No Model.) 2 Sheets-Sheet 2.

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UNTTED STATES PATENT OFFICE.

SAMUEL ORR, OF LEADVILLE, COLORADO.

CONCENTRATING-JIG.

SPECIFICATION forming' part of Letters Patent No. 674,214, dated May 14,1901.

Application filed .Tune Z7, 1900.

iTo all whom it may concern:

vcentrating-Jig, of which the following is a full,

clear, and exact description.

The object of the invention is to provide ai new and improvedconcentrating-j ig for treating ores as they come from a mine, forseparating the ores according to their` vspecic gravity, and for savingthe float-silver and float-gold, the jig being arranged to permit ofworking it with a comparatively small quantity of water, which can beused over and over again. Y

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement with parts broken out.Fig. 2 is an end view of the same with parts broken out. Fig. 3 is areduced plan view of the jig-beam. Fig. 4 is an enlarged transversesection of the jigbeam and the spring-beam, the section being taken onthe line 4 4 in Fig. l. Fig. 5 is an enlarged plan view of part of thejigpan, and Fig. 6 is an enlarged transverse section of one of thechain-pulleys.

The improved concentrating-jig is mounted on a suitably-constructedframe A, supporting a tank B, adapted to contain water, in which one,two, or more jig-pans C are immersed, for separating the different ores,as hereinafter more fully described. Each of the pans C is provided atits front and rear with pivoted upwardly-extending links D, formed withelongated slots D' at their upper ends, the slots of a pair of linksbeing engaged by pins F', held on the ends of a jigbeam F, fulcrumed atF2 on the main frame A.

In order to secure the pans O in proper position on the links D, bolts Eare provided, eX-' tending through slots E2 in segments E', se-

cured to the front and rear of the pan C, as is Serial No. 21,775. `(Nomodel.)

tank B. When a tooth of the wheel G passesover the arm F3, then thejig-beam F is caused .to suddenly swing downward and then upward,andthus give an upward-and-downward movement to the pan C in the water inthe tank B. The upward movement of the beam F is caused by the action ofa spring H, attached to a suitable overhead support, (not shown,) andalso by the action of a springbeam I, fulcrumed at I' on the main frameA and carrying at its free end a guide I2, straddling the free end ofthe beam F and supporting a friction-roller I3, engaging the under sideof the arm F3. A bolt I4, secured to the main frame A, engages the innerend of the spring-beam I, a nut I5 screwing onA said bolt to hold thefriction-roller I3 in firm contact with the under side of the arm F3.

Now when the jig-beam F is moved downward by the action of the toothedwheel G, as above mentioned, then the spring Hof the spring-beam I isput under tension, and as soon as the tooth glides off the arm Fs thenthe spring H and spring-beam I cause a sudden return or upward swingingmovement of the jig-beam F to move the pan C suddenly downward in thewater contained in the tank B.

Each pan C is adapted to receive the ore a it comes from the mine, andthe bottom of each pan is formed with perforations, prefer- .ably madesquare, as shown` in Fig. 5, with a perforations C'.` YABy theup-and-down movement given to each pan C the ore with which the'pan ischarged is agitated to such an extent, in connection with the watercontained -1oo in the tank B, that the heavier materials,

such as lead, readily pass to the bottom and through the perforations C'and into the tank B and settle therein, while the lighter materialsarrange themselves in superimposed layers in the pan, according to theirspecific gravity. The layers thus formed in the pan can be readilyremoved, and thus separation of the several materials contained in theore is accomplished in a very simple manner.

In order to remove the materials from the pan, it is necessary that thepan be lifted out of the water contained in the tank B, and for thispurpose independent means are provided for each pan to lift the same outof the water without disconnecting the pan from the jigbeam F.

The upper ends of the links D are connected with chains J, extending`upwardly upon- K and pivotally connected at its other end by a link K2with a hand-lever K3, fulcrumed at K on the main frame and under thecontrol of the operator. One end of the lever K3 carries a weight K3,and the other or handle end of said lever is adapted to be engaged withkeepers or stops KGKT, held on the main frame, to hold the links D ineither a lowermost or an uppermost position, according to which of thestops or keepers is engaged by the lever K3 at the time. Thus whenthemachine is running forseparating the materials in a pan then thehand-lever K3 for this particular pan is engaged with the keeper K tohold the beam F and impart a jigging motion tothe pan, as previouslyexplained, and when it is desired to raise a pan after the operationofjigging is completed then the operator,with out disconnecting thelinks D from the beam F, moves the lever K3into the position shown indotted lines in Fig. l, so that the lever by the link K2 imparts aswinging motion to the lever K to rotate the wheels J and wind up thechains J, connected with the links D of the pan under treatment. Whenthis takes place, the pan C is lifted upward out of the water, and thesuperimposed materials can now be removed from the pan for furthertreatment. When this has been done, the pan is again charged with orefrom the mine, and then the lever K3 is moved back to its forwardposition to cause an immersion of the pan in the water and to allow thejig-beam F to agitate the pan for jigging purposes, as previouslyexplained. lt is understood that the slots D in the links D permit theupward movement of the links when the operator works the lever K3without interfering with the jig-beam F.

On the tank B is arranged a draw-off faucet L for drawing oill the watercontained in the tank above the material settled on the bottom of thetank, the water being preferably passed through a lltering-box forretaining any oatsilver or float-gold that may have passed into thewater.

From the foregoing itis evident that but a small quantity of water isneeded to successively carry on the operation, and this water afterstraining can be used over and over again in the same apparatus.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. A concentrating-jig, comprisinga watertank,a jig-pan having a perforated bottom, held submerged in the water insaid tank, slotted links connected with said pan a'jigbeam provided atone end with means for engaging the slots in the links and fulcrumednear said end, a toothed wheel engaging the longer member of thejigbea1n at its free end to im part a downward movement to the same, andmeans for swinging the beam upward when released from the toothed wheelas set forth.

2. A concentrating-jig, comprising a watertank, a jig-pan, linksprovided with slots and connected with said pan, a jig-beam providedwith pins engaging the slots in the links, and a toothed wheel engagingthe free end of the jig-beam to impart a jigging motion to the same asset forth.

3. In a concentrating-jig, a water-tank, a jig-pan, links carrying thejig-pan, and pro- ,vided with slots at their upper ends, a jigbeamprovided with means for engaging the slots of the links and adapted toimpart a jigging motion to the pan and means for raising and loweringthe pan independent of the jig-beam, as set forth.

4. A concentrating-jig, comprising a watertank, a jig-pan havingapertures in its bottom, links pivoted to said pan and provided withslots, a jig-beam provided with pins engaging said slots in the links, atoothed wheel engaging the free end of the jig-beam to impart a jiggingmotion to the same, a spring connected with said beam at one side and aspring-beam engaging said jig-beam at the other side, as set forth.

5. A concentrating-jig, comprising a watertank, a jig-pan for immersionin the water contained in the tank, links carrying the said pan, ajig-beam having connection with the links for imparting a jigging motionto the said pan the said links having a vertical movement independent 0fthe said jig-beam, a lever weighted at one end, connections between thesaid lever and the said links for raising and lowering the links by themovement of said lever, and a second weighted lever under the control ofthe operator and connected with the first-mentioned lever, for thepurpose set forth.

6. A concentrating-jig, comprising a jigpan,vslotted links for carryingthe pan, a jigbeam provided with means for engaging the IOO IIO

IZO

ating the pan, a toothed Wheel engaging the free end of the jig-beam, aspring exerting an upward tension on the beam, a pivoted springbeaxnprovided at its free end with a frictionroller engaging the under sideof said jig"-' beam, a fixed boit engaging the other end of saidspring-beam and a nut screwing on said bolt, for the purpose set forth.

8. A concentrating-jig, comprising a watertank, a jig-pan, a pivotedjig-beam for imparting a j igging motion to the pan, a pivotedsupporting-beam for the jig-beam mounted to yield on pressure of thejig-beam, the said supporting-beam having a guide at its free end forthe jig-beam, and a friction-roller carried by said guide and interposedbetween the beams at their point of contact as set forth.

In testimony whereof I have signed my name` to this specification in the.presence of two subscribing witnesses.

SAMUEL ORR.

Witnesses:

CHARLES H. BAILEY, W. A. POLKINGHORN.

